package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.Wrapper;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.CategoryService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Slf4j
@RestController
@RequestMapping("/category")
public class CategoryController {
    @Autowired
    private CategoryService categoryService;

    /**
     * 新增分类
     *
     * @param category
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody Category category) {
        log.info("category:{}", category);
        boolean save = categoryService.save(category);

        if (save) {
            return R.success("新增分类成功!");
        } else {
            return R.error("保存失败");
        }
    }

    /**
     * 分页查询
     *
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R pageQuery(Integer page, Integer pageSize, String name) {
        //进行分页查询  构造分页构造器
        Page<Category> pageInfo = new Page<>(page, pageSize);

        categoryService.page(pageInfo, null);
        //通过info获取结果
        List<Category> records = pageInfo.getRecords();
        long total = pageInfo.getTotal();

        Map data = new HashMap<>();
        data.put("records", records);
        data.put("total", total);
        return R.success(data);
    }

    /**
     * 删除分类
     *
     * @param id
     * @return
     */
    @DeleteMapping
    public R<String> deleteById(Long id) {
        log.info("删除分类,id为:{}", id);

        //categoryService.removeById(id);
        categoryService.remove(id);

        return R.success("删除成功");
    }

    /**
     * 根据id修改分类信息
     *
     * @param category
     * @return
     */
    @PutMapping
    public R<String> update(@RequestBody Category category) {
        log.info("修改分类,结果为:{}", category.toString());

        categoryService.updateById(category);
        return R.success("修改成功");
    }

    /**
     * 根据条件查询分类数据
     *
     * @param category
     * @return
     */
    @GetMapping("/list")
    public R<List<Category>> list(Category category) {
        LambdaQueryWrapper<Category> lqw = new LambdaQueryWrapper<>();
        //添加条件
        lqw.eq(category.getType() != null, Category::getType, category.getType());
        //添加排序条件
        lqw.orderByAsc(Category::getSort).orderByDesc(Category::getUpdateTime);
        List<Category> list = categoryService.list(lqw);
        return R.success(list);
    }
}
